Hot-air dental appliance.



Patented Dec. 3|, MN.

H. C. BAGBY. HUT AIR DENTAL APPLIANCE. (Application filedJuJy 9, 1901.)

(No Model.)

if 15 6 5 7 I C I C r /x 0"W Maw WITNESSES: ill Ill INVENTOR.

ATTOR EK UNITED STATES PATENT OFFICE.

HENRY C. BAGBY, OF SANTA MARIA,'CALIFORNIA.

HOT-AIR DENTAL APPLIANCE SPECIFICATION forming part of Letters Patent N 0. 690,224, dated December 31, 1901.

Application filed July 9, 1901. Serial No. 67,658. (No model.)

To all w/zom it may concern: 7

Be it known that I, HENRY CLAY BAGBY, a citizen of the United States, residing at Santa Maria, in the county of Santa Barbara and State of California, have invented certain new and useful Improvements in Hot-Air Dental Appliances, of which the following is a specification.

My invention relates to an improved device for applying hot air for dental purposes, the object of my invention being to provide a device of this character by means of which the dentist may apply a continuous current of hot air to the tooth or mouth of a patient for a considerable length of time sufficient for an entire operation without the necessity of removing the device to apply additional heat thereto.-

My invention therefore resides in the novel construction, combination, and arrangement of parts for the above ends hereinafter fully specified and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a side elevation of the device, parts thereof being shown in longitudinal sections; and Fig. 2 is an enlarged section of the hot-air chamber and nozzle.

Referring to the drawings, 1 represents a collapsible bulb of rubber connected by a conduit 2 with a second globular chamber of rubber 3, the latter being connected by means of a rubber tube a with achamber 5, containing an absorbent material 6, into which chamber is supplied benzin or other volatile hydrocarbonaceous liquid. These parts are of a well-known construction, such as is common in the art of pyrography, and since they form no part of my present invention need not be described in greater detail. Suffice it to say the rubber of the chamber 3 is sufliciently thin and elastic to readily expand under gas-.

eons pressure, so that by compression of the bulb 1 air is pumped into said chamber 3 and is thus forced through the tube 4 at a steady pressure due to the elasticity of the expanded walls of the chamber 3. The tube 4 is connected withthe chamber 5 by means of an axial perforation 7 in the stopper 8 for said chamber.

The chamber 5 is filled with benzin or gasolene by means of the funnel-shaped mouth 9 and is then closed by means of the stopper 8. The air passing through said chamber carries with it hydrocarbonaceous vapor, and said air and vapor pass along the conduit 10 in the stopper 11, closing the other end'of said chamber, and thence through the metallic tube 12, emerging from the end of said tube 12 upon a coil of thin platinum wire, (shown at 13.) Said gases then pass through said coil and .impinge upon the inner surface of a chamber 14, made of platinum, said chamber being in the form of a tube secured upon the end of the stopper 11 and closed at the other end,

as shown, said closed end being slightly deand outward through said conduit 16 and then through said nozzle, emerging at the bent tapering end 18 thereof, by means of which the current of hot air may be conveniently applied to the mouth or tooth of the patient.

I claim- 1. In a hot-air dental appliance, the combination of a portable combustion-chamber, means for supplying air under pressure and gaseous fuel to said combustion-chamber, and a nozzle carried by said combustion-chamber and connected therewith, substantially as described.

2. In a hot-air dental appliance, the combination of a portable combustion-chamber, means for supplying air under pressure and gaseous fuel to said combustion-chamber, and a nozzle attached to said combustion-chamber at a point to the rear of the point of combustion therein, and extending along and beyond said combustion chamber to receive the heat of radiation therefrom, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two subscribing Wit- HQSSGS.

. H. O. BAGBY. Witnesses:

J. E. HAMILTON, J. F. GOODWIN. 

